CVE-2026-121615
Linksys E5600 Login mesh_login.cgi improper authentication
CVSS Score
10.0
EPSS Score
0.0%
EPSS Percentile
0th
A vulnerability was determined in Linksys E5600 1.1.0.26. Affected is an unknown function of the file /cgi-bin/mesh_login.cgi of the component Login Handler. Executing a manipulation can lead to improper authentication. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.
| CWE | CWE-287 |
| Vendor | linksys |
| Product | e5600 |
| Published | Nov 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linksys / E5600
1.1.0.26
References
vuldb.com: https://vuldb.com/vuln/430463 vuldb.com: https://vuldb.com/vuln/430463/cti vuldb.com: https://vuldb.com/cve/CVE-2026-121615 vuldb.com: https://vuldb.com/submit/1023310 github.com: https://github.com/Zimo-666/E5600-cves/tree/main/02-mesh-login-auth-bypass linksys.com: https://www.linksys.com/
Credits
🔍 liuyingqi (VulDB User) VulDB CNA Team